Phylum: Charophyta Family: Desmidiaceae
Actinotaenium diplosporum (P. Lundell) Teiling
This species seems scarcer than the varieties. Most often found in circumneutral waters in shallow lochans and pools.
Coesel, P.F.M. & Meesters, K.J. (2007) Mesotaeniaceae and Desmidiaceae of the European Lowlands
Tsarenko, P.M., Wasser, S.P. & Nevo, E. (editors) (2014) Algae of Ukraine, Volume 4: Charophyta